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October 16, 2025 · Anthropic

Agent Skills in beta, with Anthropic-managed and custom Skills via the Skills API

  • We’ve launched Agent Skills (skills-2025-10-02 beta), a new way to extend Claude’s capabilities. Skills are organized folders of instructions, scripts, and resources that Claude loads dynamically to perform specialized tasks. The initial release includes:
  • Anthropic-managed Skills: Pre-built Skills for working with PowerPoint (.pptx), Excel (.xlsx), Word (.docx), and PDF files
  • Custom Skills: Upload your own Skills through the Skills API (/v1/skills endpoints) to package domain expertise and organizational workflows
  • Skills require the code execution tool to be enabled
  • Learn more in Agent Skills and API reference
Read the Anthropic changelog
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Announcements from AWS, Google Cloud, Azure, Cloudflare and the main AI providers in one searchable changelog, with daily, weekly and monthly digests.

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